APA (7th ed.) Citation

Bowman, R. H. (1973). Soil survey of the San Diego area, California. United States, Soil Conservation Service.

Chicago Style (17th ed.) Citation

Bowman, Roy H. Soil Survey of the San Diego Area, California. Washington: United States, Soil Conservation Service, 1973.

MLA (9th ed.) Citation

Bowman, Roy H. Soil Survey of the San Diego Area, California. United States, Soil Conservation Service, 1973.

Warning: These citations may not always be 100% accurate.